Make use of Vector Iterator capabilities where appropriate
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Key: MAHOUT-139
URL: https://issues.apache.org/jira/browse/MAHOUT-139
Project: Mahout
Issue Type: Improvement
Affects Versions: 0.2
Reporter: Grant Ingersoll
Assignee: Grant Ingersoll
Fix For: 0.2
There are a bunch of places where we loop over the size of the vector when we
should be taking advantage of the sparseness, or at least be agnostic about it
and use an iterator.
This patch addresses these issues in the Vector implementations and in the
DistanceMeasure implementations
Also adds iterateNonZero() and interateAll and drops the Iterable portion of
Vector since it wasn't clear what it was iterating
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